Heat-distributer



(No Model.)

J. W. REID. HEAT DISTEIBUTBR.

No. 469,597. Patented Feb. 23, 1892.

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UNITED STATES PATENT OFFICE.

`JAMES W. REID, OF GRAND RAPIDS, MICHIGAN.

HEAT-DISTRIBUTER.

SPECIFICATION forming part of Letters Patent No. 469,597, dated February 23, 18:92.

Application lecl June 20, 1891. Serial No. 396,955, (No model.) v

To all 'whom it may concern.-

Be it known that I, JAMES W. REID, a citizen of the United States, residing at the city of Grand Rapids, in the county of Kent and State of Michigan, have invented a certain new and useful Heat-Distributer, o f -which the following 'is a specification.

My invention relates to a device for distributing and applying, as desired for the purposes of ordinary domestic cooking, the heat derived from a gas or gasoline or other stove where the heat of the flame is ,usually applied directlyto the utensil to be heated; and its 0bject is to distribute and apply the heat evenly and economically. This object I accomplish by the device shown in the accompanying drawings, in Which-- Figure l is a top'plan view of the heater, and Fig. 2 is a vertical section on line .fr m of Fig. l.

The heater itself is a metal plate, which I have shown circular` in form, but which may be square or of any other suitable form, and which may be constructed of iron, steel, or of anyother metal which will readilyconduct and radiate heat. The central part of this plate I prefer to leave solid, as shown by A, for greater strength, and for the same purpose I provide radiating arms or ribs B B, running from the central disk to the circumferential rim. The remainder of the surface of the plate, or such part thereof as desired I provide with a series of perforations, (shown by- 0 o o.) These are upon their upper or under parts, or both, enlarged, so to give a surface opening of concave form, or substantially such form. Then both surfaces are thus treated, the plate in cross-section will take the form shown in Fig. 2, and as the outer edges of one perforation nearlyor quite reach the outer edges of the adjacent ones there will be left betwe'en the rows only a comparatively narrow strip of metal.

The ribs B B maybe provided with a groove or grooves, as b b, and this groove, together with the shape of the perforations, permits the free expansion and contraction of the plate consequent upon its alternate heating and cooling, but Without danger of cracking or breaking.

An openingD is provided, so that the heater may be lifted and moved by an ordinary stove-hook.

The circumferential rim C extends both above and below the plate, as shown by the cross-section. The lower extension serves to raise the plate olf the surface of the stove and away from the flame, and also to confine the heat of the, Haine and prevent its escape around the edge, thus forming a lower heatchamber, which distributes and equalizes the heat. The rim also extends above the upper surfaceof the plate and with the ribs forms a support for the utensil to be heated and makes an upper heatchamber- The perforations are small-from one thirty-second to onefourth of an inch in diameter-andso prevent the iiame from passing up through to any considerable extent, While they are large and numerous enough to permit the heat to rise freely. The peculiar concave form shown also largely increases the amount of radiating-surface within agiven circumference, and

therefore increases the heating efficiency of the device.

It is evident that the heater can,if desired, be attached so as to form apermanentbottom for anyntensil, or that it is capable of effective use as a broiler, toaster, or for similar uses'.

Having thus described my invention, what I claim to have invented, and desire to secure by Letters Patent, is- A rlhe heater for gas or similar stoves, composed of the metal. plate having a surrounding rim extending below its lower surface and above its upper surface and having perforations to permit the heat to ascend and having radial ribs on one surface, such radial ribs having grooves to act as expansionchecks, substantially as described.

In witness whereof I have hereunto set my hand and seal in the presence of two witnesses.

JAMES XV. REID. [L. s]

Witnesses:

ARTHUR C. DENIsoN, HARRY l?. VAN WAGNER. 

